Liquid Penetrant Testing or Penetrant Testing (PT) is one of the oldest and most widely used non-destructive testing method. The origin of liquid penetrant testing is generally attributed to the inspection of wheel axles in the railroad industry in the 1890s. It is considered an effective NDT method and capable of detecting very small surface breaking discontinuities that cannot be found by direct visual examination in various non-porous materials. It is well suited to the detection of all types of surface cracks, forging laps, surface porosity, laminations, hot tears, cold shuts and similar discontinuities in various product forms. Penetrant testing can be performed on magnetic and non-magnetic materials, metal or non-metals, ceramics etc but does not work well on porous materials. It is extensively used for the inspection of wrought and cast products of both ferrous and nonferrous metals, powder metallurgy parts, ceramics, plastics and glass objects.

This course designed to meet the classroom training requirements in compliance with SNT-TC-1A or other appropriate certification programs and covers the body of knowledge outlined in CP-105 of ASNT. A certificate of participant will be issued upon satisfactory completion of all theory and practical demonstration training, quizzes and passing of all examinations, however this certificate cannot be considered as PT Level-I certified person without certification from the employer.